Operating mechanism for pumps



- L. BRENNAN.

OPERATING MECHANISM FOR PUMPS.

APPLICATION FILED NOV. 1918.

1,345,909, Patented July 6,1920.

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'L. BRENNAN. v OPERATING MECHANISM FOR PUMPS. APPLICATION F!LED NOV. 7, 1918.

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Imam. %N A, N N WLN LAWRENCE BRENNAN, OF RED DEER, ALBERTA, CANADA.

OPERATING MECHANISM FOR PUMPS.

Specification of Letters Patent.

Patented July 6, 1920.

Application filed November 7, 1918. Serial No. 261,465.

To all whom may concern:

Be it known that I, LAWRENCE BRENNAN, a subject of the King of Great Britain, residing at Red Deer, in the Province of Alberta, and Dominion of Canada, have invented new and useful improvements in Operating Mechanism for Pumps, of which the following is a specification.

This invention relates to pumps, the main object in view being to produce a pump embodying means whereby a relatively high discharge efficiency is imparted to the pump and which at the same time may be operated by any person or by driving the pump mechanism by means of any suitable motive power.

A further object of the invention is to provide novel pump gear, the members and it parts of which may be easily and economically constructed and assembled.

One of the chief objects of the invention is to produce a pump embodying mechanism whereby a practically continuous and uniform flow is obtained enabling a greater volume of water to be forced from the pump than is possible with the ordinary single stroke pump now in use.

With the above and other objects in view, the invention consists in the construction, combination and arrangement of parts, as herein described, illustrated and claimed.

In the accompanying drawings:

Figure l is an elevation of the improved pump.

Fig. 2 is a side elevation of the same.

Fig. 3 is an enlarged fragmentary vertical section through the gearing of the pump taken in line with the main gear shaft and the crank shaft sections.

Fig. f is a vertical transverse section taken at a right angle to Fig. 3.

Referring to the drawings, 1 designates the suction pipe of the pump, said pipe being of any suitable size, capacity and length to extend down into a well or other source of water supply. Connected with the pipe 1 by means of a union 2 is a Y-coupling or fitting 3 having two branches l which are connected to the main body of the Y-fitting by unions 5. Superimposed and supported by the Y-coupling are two pump cylinders 6 arranged in spaced parallel relation to each other, the pump cylinders 6 being connected to the branches 4: of the coupling 5 by unions 7. All of the parts just herein described are designed to be arranged 111 may be.

the upper portion of a well as indicated in Figs. 1 and 2, wherein 8 designates the ground line.

Connected with the pump cylinders 6 and extending upwardly therefrom are discharge or lift pipes 9 also arranged in spaced parallel relation to each other and secured at their lower extremities to upstanding tubular bosses 10 on a main supporting base or bed piece 11 adapted to be secured by suitable fastening means 12 to a ground support or flooring as the case 13 designates a manifold which is connected to the pipes 9 at a point between the ends thereof and in communication with both of said pipes, said manifold 13 having a single discharge outlet or spout 14: lead ing therefrom.

Superimposed upon the structure hereinabove described is a frame designated generally at A and shown for convenience as comprising twin frame members 15, the lower ends of which are extended outwardly at an angle as shown at 16 and secured by fastening means 17 to the upper extremities of the pipes 9. The members 15 have their upper portions deflected inwardly toward each other as shown at 18 and secured together by fastening means 19. 2O designates an operating lever which is mounted on a pivot 21 between the oppositely lined portions of the frame A as indicated in Figs. 1 and 2. 22 designates a main gear supporting shaft, the opposite ends of which are supported by the oppositely lined portions 15 of the frame A as shown in Fig. 3. Mounted to turn freely on the shaft 2-2 are two main driving gears 23 and between said main driving gears 23 and also supported by the shaft 22 is an interposed spider 24: having journaled on the opposite extremities thereof pinions 25 which mesh with beveled gear faces 26 on the inner adjacent faces of the gears 23, whereby in the rotation of one of the gears 23, a reverse rotary motion is insured as to the other gear 23, the spider 24 being non-rotary and fixed in relation to the shaft 22 which is also non-rotary, said shaft being fixedly attached to the frame members 15.

The gears 28 are also provided with peripheral spur teeth or spur faces 27 which mesh with and drive pinions 28 journaled upon the independently rotatable sections 29 of a crank shaft which is superimposed above the shaft 22 and journaled in the portions 15 of the frame A and also in a center bearing 30 carried by and depending from a shaft hanger 31, the end portions of which are fixedly connected at 32 to the frame members 15 as shown in Fig. 3.

Connected to the lever 21 by means of pivots 33 located at opposite sides of the fulcrum pivot or pin 21 of said lever are pawls 34, the free ends of which engage rack faces 35 on the outer sides of the main gears 23. One of the pawls 34 is formed with a' hook shaped end to exert a pulling action on the respective ratchet gear face 35 while the other pawl 34 is provided with a pushing end or extremity to exert a clown- .ward thrust on the respective ratchet face 35. Two sets of such pawls 34 are em ployed, there being one set for each of the gear faces 35. Therefore, as the lever is rocked back and forth, both a pulling and pushing action is exerted on each ratchet face 35 thereby imparting a rotary movement to the respective gears 23. It will also be noted that by reason of the construction and arrangement described, the gears 23 may simultaneously revolve in opposite directions.

On the outer projecting end portion of I each crank shaft section 29 there is fastened a'crank wheel 36 each having a radially extending slot 37 designed to adjustably receive'a pivot or journal pin 38, said pin being Y provided withany suitable means for clamping the same at any point in the length of the slot 37 so as to vary the throw of the respective pump piston hereinafter referred to. Journaled upon the pin 37 is a connecting rod 39, the opposite end of which is connected by a pivot 40 to the upper extremity of a piston rod 41 which extends down wardly through the discharge pipe 9 hereinabove referred to and has fixedly attached to its lower extremity a piston which is mounted for reciprocatory movement in the respective pump cylinder 6. Theconnecting rods 39 are attached to the wheels 36-at diametrical opposite points so that as one piston is inoving downwardly in its cylinder 6, the other piston is moving upwardly. Therefore, water is constantly being lifted through one or the other of the pipes 9 from which it is delivered to the manifold 13 and outlet 14, producing a practically continuous flow of water in conjunction with which the pump is used.

While the lever 20 is shownin the form of a hand lever it will, of course, be understood that this form of lever is not essential to the carrying out of the invention, the lever may be driven by any suitable motive power whenever necessary.

From the foregoing description taken in connection with the accompanying drawings, it will now be observed that the pump gearing is all mounted upon and supported by a frame which surmounts and is secured to and supported by the pipes through which the water is lifted .and discharged. It will also be observed that the pump driving mechanism embodies few parts, said parts being of simple construction and capaand-with a minimum amount of friction, the

members or elements of the pump driving mechanism being so relatively disposed and arranged as to distribute the friction of the parts and prevent any. binding or cramping action between the same. The pump is especially built and designed for speed, so as to discharge a continuous volume .of water when power is applied to the operating lever thereof. The intake and outlet orifices will, of course, be made sufiiciently large to receive and discharge the water freely in relation to the pump cylinders, one or the other of which will be always lifting and discharging the water.

I claim'z- 1. The combination of two reciprocatory driven members,and means for driving said members concurrently inpopposite directions embodying a pair of main driving gears, a shaft on which both of said gears are ournaled for free turning movement, crank shaft sections in axial alinement with each other and parallel to said main gear shaft, pinions fast onlsaid crank shaft sections meshing with said main driving gears, crank operated connections between said crank shaft sections and said reciprocatory driven members, bevel gear faces on the inner sides of said main driving gears,'a spider on the main gear shaft between the latter, and pinions journaled'on said spider and meshing withsaid bevel gear facesf.

2. The combination of two reciprocatory driven members, and means for driving said members concurrently in opposite directions embodying a pair of main driving gears,a shaft on which both of said gears are j ournaled for free turning movement, crank shaft sections in axial alinement with each other and parallel to said main gear shaft, pinions fast on said crank shaft sections meshing with said main driving gears, crank operated connections between crank shaft sections and said reciprocatory driven members, bevel gear faces on the inner sides of said main driving gears, a nonrro'tary spider on the main gear shaft between the latter, and pinions journaled on said spider and meshing with said bevel gear faces 3. The combination of two reoiprocatory driven members, and means for driving said members concurrently in opposite directions embodying a pair of main driving gears, a shaft on which both of said gears are journaled for free turning movement, crank shaft sections in axial alinement with each other and pa allel to said main gear shaft, pinions fast on said crank shaft sections meshing with said main driving gears, crank operated connections between said crank shaft sections and said reciprocatory driven members, an operating lever pivotally supported between its ends, and two sets of pawls carried by said lever arranged at opposite sides of its pivot and engaging said main driving gears.

at. The combination of two reciprocatory driven members, and means for driving said members concurrently in opposite directions embodying a pair of main driving gears, a shaft on which both of said gears are journaled for free turning movement, crank shaft sections in axial alinement with each other and parallel to said main gear shaft, pinions fast on said crank shaft sections meshing with said main driving gears, crank operated connections between said crank shaft sections and said reciprocatory driven members, said main driving gears having ratchet faces on their outer sides and bevel gear faces on their inner sides, an operating lever, pawls carried by said lever and 00- operating with said ratchet faces, a nonrotary spider supported by said main shaft between the main driving gears, and pinions journaled on said spider and meshing with said bevel gear faces.

In testimony whereof I affix my signature.

LAWRENCE BRENNAN. 

